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Stepper Motor Controller…. (24 Pins) LS7290, LS7290-S, LS7290-TS NEW! Last Update: 06/13/08 Controls two-phase Bipolar and four-phase Unipolar motors Inexpensive replacement for L297. Direct interface to L298 for Bipolar motors Interface to four AND Gates driving four N-Channel MOSFET's for Unipolar motors Programmable step sizes: Full and 1/2 Nominal clock frequency: 8MHz Maximum stepping rate: greater then 30k per second. Programmable inter-step blanking delays: 1.25us, 2.5us, 3.75us and 5us at 8Mhz. H-bridge PWM resolution: 0.39% Two PWM and Four Phase outputs for H-Bridge control. On-chip Crystal Oscillator, RC Oscillator or External source, controls Step Frequency and Duty Cycle. Supply voltage: 3V to 5.5V   Home > Products > Stepper Motor Control Return to Top